What’s Vulnerable › Vulnerabilities

CVE-2023-3487: Integer overflow in Silicon Labs Gecko Bootloader leads to unbounded memory access

• Severity: high (CVSS 7.8 v3.1)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 0.3% probability of exploitation in the next 30 days
• Public exploit or detection template: none known
• Published: 2023-10-20 · updated 2026-06-17
• Weakness: CWE-125

Description

An integer overflow in Silicon Labs Gecko Bootloader version 4.3.1 and earlier allows unbounded memory access when reading from or writing to storage slots.

Affected products

• silabs.com Gecko Bootloader: through 4.3.1

References

• https://community.silabs.com/s/contentdocument/0698Y00000ZmXqLQAV
• https://github.com/SiliconLabs/gecko_sdk/releases
• https://community.silabs.com/s/contentdocument/0698Y00000ZmXqLQAV
• https://github.com/SiliconLabs/gecko_sdk/releases

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